US2799004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical well logging system
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-04-13
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Granted: 1957-07-09
•
Expires: 1973-04-13
Abstract
No abstract record available.
Inventors
- 👤 Robert R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:51
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A METHOD FOR THE ELECTRIC LOGGING OF A BORE HOLE WHICH COMPRISES TRANSMITTING CURRENT BETWEEN TWO HORIZONRLLY SPACED POINTS WITHIN THE BORE HOLE, SIMUITANEOUSLY DETCTING THE RESULTING INDUEED POTENTRIAL DIFFERENCE BETWEEN TWO HORIZONTALLY SPACED POINTS IN THE BORE HOLE, SAID LAST NAMED POINTS BEING IN SUBSTANTIALLY THE SAME VERTICAL PLANE AS THE FIRST NAMED POINTS A SPACED VERTICALLY THEREFROM.
Claim 2
Independent Claim
59 words
A METHOD FOR THE ELECTRIC LOGGING OF A BORE HOLE WHICH COMPRISES TRANSMITTING CURRENT BETWEEN TWO HORIZONRLLY SPACED POINTS WITHIN THE BORE HOLE, SIMUITANEOUSLY DETCTING THE RESULTING INDUEED POTENTRIAL DIFFERENCE BETWEEN TWO HORIZONTALLY SPACED POINTS IN THE BORE HOLE, SAID LAST NAMED POINTS BEING IN SUBSTANTIALLY THE SAME VERTICAL PLANE AS THE FIRST NAMED POINTS A SPACED VERTICALLY THEREFROM.
Claim 3
Dependent Claim
105 words
AN ELECTRICAL WELL LOGGING APPARATUS COMPRISING A BODY MEMBER ADAPTED TO BE MOVED WITH A BORE HOLE, TWO PAIRS OF ELECTRODES MOUNTED ON SAID BODY MEMBER, ALL OF SAID ELECTRODES INSULATED FROM ONE ANOTHER AND FROM THE BODY MEMBER, THE ELECTRODES BEING ARRANGED ON SAID BODY MEMBER IN A MANNER SUCH THAT THE CENTERS OF ALL OF SAID ELECTRODES ARE IN SUBSTANTIALLY THE SAME VERTICAL PANE WHEN POSITIONED WITHIN THE BORE HOLE AND SUCH THAT ONE OF SAID PAIRS OF ELECTRODES IS SPACED VERTICALLY FROM THE SECONS PAIR AND THE ELECTRODES IN EACH PAIR ARE ON OPPOSITE SIDES OF THE BODY MEMBER, A SOURCE OF
Claim 4
Dependent Claim
105 words
AN ELECTRICAL WELL LOGGING APPARATUS COMPRISING A BODY MEMBER ADAPTED TO BE MOVED WITH A BORE HOLE, TWO PAIRS OF ELECTRODES MOUNTED ON SAID BODY MEMBER, ALL OF SAID ELECTRODES INSULATED FROM ONE ANOTHER AND FROM THE BODY MEMBER, THE ELECTRODES BEING ARRANGED ON SAID BODY MEMBER IN A MANNER SUCH THAT THE CENTERS OF ALL OF SAID ELECTRODES ARE IN SUBSTANTIALLY THE SAME VERTICAL PANE WHEN POSITIONED WITHIN THE BORE HOLE AND SUCH THAT ONE OF SAID PAIRS OF ELECTRODES IS SPACED VERTICALLY FROM THE SECONS PAIR AND THE ELECTRODES IN EACH PAIR ARE ON OPPOSITE SIDES OF THE BODY MEMBER, A SOURCE OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |